NIGEL Farage has said breaking up the Union would be “deeply regrettable” but worth it if it meant Brexit goes ahead.

The Brexit Party leader insisted his “number one” focus was on leaving the EU.

His remarks came after Theresa May warned Tory leadership hopefuls that the UK could break up.

READ MORE: Theresa May tells successor not to trust SNP in Scotland speech

Speaking to ITV's Peston, Farage reiterated his priorities for the UK while insisting he could not envisage Scotland becoming independent.

"Being an independent self-governing nation is the number one,” he said.

“If there were parts of the United Kingdom that didn't wish to stay part of it that would be deeply regrettable but I just don't believe that to be the case – I really genuinely don't believe it."

He added: "They said if we voted Brexit that the United Kingdom will break up. We're three years on, we're not seeing that in any way at all.

“Frankly we've had enough of all these threats. I don't see any possibility of Scotland leaving the United Kingdom to join this United States of Europe that is being built, and having to sign a commitment to join the Euro. In the case of Scotland I just do not see that happening."

The comments follow a recent Panelbase survey for the Sunday Times which found that 51% of Scots want indyref2 to be held either when the UK is negotiating to leave the EU or has finished the negotiations.

Only 48% of voters are against another independence referendum in the next few years.

The poll of 1024 voters, carried out this month, also suggested the country is near-evenly split on how to vote on independence. 51% would back No while 49% would opt for Yes.

READ MORE: Scottish independence: 51% of Scots want indyref2 now

Farage also commented on suggestions that he enter into an agreement with Boris Johnson if he becomes prime minister.

The leader of the Brexit Party, which sits one point behind the Tories in the most recent YouGov poll, insisted such a pact could only happen if a future Conservative leader was committed to a hard Brexit.

READ MORE: Labour pushed into fourth behind Brexit Party in UK-wide poll

"We're back to trust, aren't we? Who on earth would I trust?” he said.

"If we had a new Conservative leader who said, ‘right, I’m going to face down the House of Commons and, if necessary, I will call a general election this autumn on us leaving on 31 October' – if a Conservative leader had the guts to do that then, of course, if they wanted to come and talk to us, we would be prepared to listen.

"We would meet them, I guess, in the demilitarised zone because, at the moment, whenever my name or the Brexit Party name comes up, all we get is abuse and insults, so I don't think we're very close to a deal."